The Centers for Disease Control & Prevention (CDC) has just released the 2017 final Lyme disease reported cases numbers. Total US reported cases was 42,743 ─ CDC has reported that only 10% of cases are actually reported─ that translates into 427,430 actual new Lyme cases in the US in 2017.

The Lyme Disease Association, Inc. (LDA) has ranked the top 15 states based on those CDC reported Lyme case numbers.

Note: In 2016, MA changed reporting requirements and very few MA cases are now counted by CDC

*In recent years, an increasing number of NY Counties have used estimating to determine Lyme case numbers. The Council of State & Territorial Epidemiologists, in charge of surveillance, doesn’t permit estimation to be reported by CDC in the national counts. In 2017, NY State reported it had 9,803 Lyme cases including those 27 estimated county numbers. CDC reported 5,155 Lyme cases for NY State, which excluded the 27 counties’ estimated numbers.